Fluid-pressure regulator.



J. M. KAMNSKY. FLUID PRESSURE REGULATOR. APPLICATION FILED APR. 1s,1912.

1,079,985. l A Patented Dec.2,1913.

Figi.

. WJTNESSES- i flvI/ENTOR.

ATTORNEY.

JULIUs M. KAMINSKY, or NDIANAPOLIS, INDIANA.

FLUID-PRESSURE REGULATOR.

Specification of Letters Patent.

Application led April 18, 19172. Serial No. 691,545.

To all whom t may concern:

Be it known that I, J ULIUs M. KAMINSKY,

a citizen ofthe United States, and a resident of Indianapolis, county ofMarion, and State of Indiana, have invented a certain usefulFluid-Pressure Regulator; and I do hereby declare that the following isla full, clear, and exact description thereof, reference being had to theaccompanying drawings.

LThe object of this inventio-n is tp provide a simple, economical andyet eicient automatic pressure regulator for Huids flowing through pipesor other conduits.

The invention has been 'made with p-ar.

ticular reference to use .in connection with Sanitary drinking fountainscoupled with other pipes through which water passes 'under pressure andthe objectl of the invention is to prevent irregularities of thepressure of the Water issuing from the pipe and, therefore, prevent theWater from spouting up into thc face of the person using the drinkingfountain. However, the invention is not limited to this particular use,as it may be used in many other situations.

The chief feature of the invention consists in placing within the pipeor conduit a tapering spiral spring located centrally wit-hin the pipeand with one end fixed and the free end carrying a head which receivesthe initial pressure of the fluizl'coming through the pipe so that asthe pressure ,increases against said head, the spring. will be more andmore collapsed and thus substantial uniformity of the pressure of theiiuid as it issues from the pipe, be attained.

The nature of the invention will be understood from the accompanyingdrawings and the following description and claims:

In the drawings, Figure 1V is a central longitudinal sect-ion throughthe pipe containing said regulating means, the same being in idlecondition'. Fig. 2 shows the condition of the regulating means whenunder pressure. Fig. 3' is a similar section showing a modified form ofregulating means in idle condition. Fig. Al is the same excepting thatthe regulator is shown in elevation and under pressure.

There is shown herein a nozzle 10 through which the fluid escapes from asupply pipe 11. They may be connected by a threaded sleeve or sect-ion12.

The regulating means consists of a tapering'spiral spring 13 which hassecured on its smaller end a pressure head 14 of somewhat less diameter4than the internal diam- Patented Dec. 2,1913.'

eter of the pipe. The large end of the spring l ls fixed by any meanswithin the pipe Herein it is shown fastened 'to a ring l5 which islocated in the sleeve 12. Whatever means is employed to hold the fixedend of the spring' in place should be such as to maintain the springsubstantially central in the pipe, although that is not vital.

The operation is as follows: Fluid going through the pipe under pressurein the direction of the arrow in Fig. 2, bears against the pressure head14 4and collapses the spring in proportionto the pressure. Thecollapsing of the spring relatively diminishes the area of passagewaysthrough the sprmg for the movement of the fluid. Thus if the spring werecompletely collapsed by an extremely heavy p-ressure, it .would almost,if not entirely, close the passageway. If the pressure was not sb great,it would leave correspondingly more space for escape through the spring.Thus this regulator will maintain approximately a uniform pressure inthe nozzle and at least interfere with the passage of the fiuid throughthe pipe sufiiciently to prevent it spurting too much. I claim as myinvention:

1. In a regulator of the How of Huid, the

vcombination with a conduit, of a `spring coiled longitudinally thereinand normally expanded with one end surrounding the passage for the iuidso that the uid must iow through the convolutions thereof, and a head onthe other end of thespring constructed to give a passage for fluid pastit of a constant caliber which is greater than that of the passagethrough .the convolution of the spring during the period when the flowthrough the regulator is being changed.

2. In a regulator of the iiow of fluid, the

combination' with a conduit. of a tapering spring coiled longitudinallytherein with the large end secured to the conduit and surrounding thepassage for the fluid and saidspring expanded normally so that fluidwill pass through its convolutions and with the means attached to thesmall end of the spring in position to be acted upon by the impact ofthe fluid, said means constructed to give a passage for fiuid past it ofa constant caliber which is greater than that of the passage through theconvolutions of the spring during the period when the flow through 'theregulator is being changed.

3. In a regulator of the flow of fluid, the combination with a'conduit,of a tapering spring coiled longitudinally therein with the large endsecured' to the conduit and surrounding the passageway for the fluid,said spring being expanded normally so that the' `fluid may pass throughits convolutions, and a. head on the small end of said springconstructed to give a passage for lfluid past it of a constant caliberwhich is greater than that of the passage through the convolutions ofthe spring during the period when the flow through the regulator isbeing changed.

4. In a regula-tor of the flow of fluid, the combination of a conduitwith two tubes and a connecting removable sleeve, a ring in said sleevewith an opening through it for the passage of fluid, a coiled springWith one end secured to said ring and surrounding the openingtherethrough and normally exy,

panded to admit fluid through the convolutions thereof, and a head onthe free end of the spring constructed to give a, passage for fluid pastit of'a constant caliber which is greater than that of the passa ethrough the convolutions of the spring uring the period when the flowthrough the regulator is being changed.

In wltness whereof, I -have hereunto afixed my signature in the presence`of the Witnesses herein named.

J ULIUS M. KAMINSKY.

Witnesses:

G. H. BOINK, E. H. MAYO.

